US20080265079A1 - Cap For A Seat Belt Retractor - Google Patents
Cap For A Seat Belt Retractor Download PDFInfo
- Publication number
- US20080265079A1 US20080265079A1 US12/109,462 US10946208A US2008265079A1 US 20080265079 A1 US20080265079 A1 US 20080265079A1 US 10946208 A US10946208 A US 10946208A US 2008265079 A1 US2008265079 A1 US 2008265079A1
- Authority
- US
- United States
- Prior art keywords
- cap
- component according
- adhesive plate
- housing
- seat belt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/34—Belt retractors, e.g. reels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/08—Insulating elements, e.g. for sound insulation
- B60R13/0815—Acoustic or thermal insulation of passenger compartments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/34—Belt retractors, e.g. reels
- B60R2022/3402—Retractor casings; Mounting thereof
Definitions
- the invention relates to a cap for a seat belt retractor.
- the invention also relates to a seat belt retractor equipped with such a cap.
- the locking mechanism of a seat belt retractor contains a number of movable parts, which cause the noise in the driving operation.
- the locking mechanism contains a sensor having a movably disposed element for the vehicle-sensitive triggering of the locking mechanism, the sensor is continuously deflected as a result of vibrations during driving and thereby strikes against other parts.
- a retractor which is arranged within a cavity of a column of a motor vehicle.
- the retractor includes an automatic belt retracting device as well as a belt tightening device.
- the automatic belt retracting device is enclosed by a housing which includes a base plate.
- the base plate on the cavity side, rests against the inside panel of the column and is fastened to the inside panel by use of a single screw.
- a sleeve-shaped elastomer part is provided between the screw, on the one hand, and the inside panel or the base plate, on the other hand.
- a seat belt retractor which is equipped with a housing lid constructed as a plastic molded part with a base wall. A plurality of elevations cast to the base wall are provided, which taper in the forming-out direction of the housing lid and form a sound-absorbing labyrinth structure.
- this object is achieved by providing a cap for a seat belt retractor having a housing, which cap can be placed on a side of the housing of the seat belt retractor that is assigned to a sensor.
- the cap is made of aluminum and is provided with an adhesive plate, by which the cap is glued to the housing.
- the cap according to the invention consists of aluminum and is provided with an adhesive plate by way of which the cap is glued onto a housing of the seat belt retractor.
- the noise generated by the sensor of the seat belt retractor is reduced by the cap having the adhesive plate.
- the adhesive plate consists of an elastomer, particularly of a butyl adhesive.
- the butyl adhesive has good noise reduction characteristics and a good stability with respect to acid and alkali.
- FIG. 1 is a schematic representation of the fastening of a seat belt retractor having a cap according to the invention on a vehicle body;
- FIG. 2 is a perspective view of a cap according to the invention.
- FIG. 3 is a schematic representation of the placing of the cap according to the invention onto the seat belt retractor
- FIG. 4 is a schematic representation of a seat belt retractor having a cap according to the invention.
- FIG. 5 is a schematic representation of a top view of a cap according to the invention.
- FIG. 6 is a schematic representation of a cross-section through a cap according to the invention.
- FIG. 1 illustrates the fastening of a seat belt retractor 1 by use of a screw 2 on a vehicle structure 3 .
- the seat belt retractor is arranged inside the B column, specifically at the level of the seat occupant's ear.
- the seat belt retractor has a locking mechanism which contains a sensor (not shown) having a movably disposed element for the vehicle-sensitive triggering of the locking mechanism.
- the sensor is continuously deflected by vibrations in the driving operation and in the process strikes against other components, which generates noise.
- a cap according to the invention is placed at least on a sensor-side face 5 of the seat belt retractor.
- FIG. 2 shows the cap 4 according to the invention in an un-mounted condition.
- the cap 4 has an essentially circular base part 6 with a wall 7 surrounding the base part 6 at a right angle.
- the cap 4 therefore, essentially has a flat shell shape, which is illustrated in the figures.
- a metal is used as the material for the cap.
- the cap 4 is made of aluminum.
- FIG. 3 shows how the cap 4 is placed onto a housing 8 of the sensor-side face 5 of the seat belt retractor.
- the housing 8 is made of a plastic material. Identical elements shown in the figures have the same reference numbers.
- the face 5 of the plastic housing 8 is essentially cylindrical and has at least one elevation 9 at a point on its exterior surface.
- the wall 7 of the cap 4 has a corresponding notch or recess 10 which, when the cap 4 is placed on the plastic housing 8 , receives the elevations 9 , so that the cap 4 can be moved into the correct position, which is illustrated in FIG. 4 .
- several elevations 9 may be provided around the circumference of the plastic housing, and several corresponding notches or recesses 10 may be provided in the cap 4 .
- FIG. 5 is a top view of the cap 4 , which is provided with an adhesive plate 11 by which the cap 4 is connected with the plastic housing 8 in a self-adhesive manner.
- the adhesive plate 11 is glued onto the base surface 6 of the cap 4 and has an essentially ring-shaped construction.
- the adhesive plate 11 consists of an elastomer and, preferably, of a butyl adhesive.
- the butyl adhesive may be plastically deformable at room temperature, which promotes the gluing of the cap 4 onto the plastic housing 8 .
- the butyl adhesive also has good noise reduction characteristics and a good stability with respect to acid and alkali.
- the adhesive plate 11 is formed of a butyl cord, which is inserted under pressure in a round shape. The butyl cord is advantageously pressed to a length of 2 mm to 3 mm, and preferably to 2.5 mm.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automotive Seat Belt Assembly (AREA)
Abstract
Description
- This application claims the priority of German Application No. 10 2007 020 192.5, filed Apr. 28, 2007, the disclosure of which is expressly incorporated by reference herein.
- The invention relates to a cap for a seat belt retractor. The invention also relates to a seat belt retractor equipped with such a cap.
- An important factor in the performance of a seat belt retractor is the noise generated by the retractor. The locking mechanism of a seat belt retractor contains a number of movable parts, which cause the noise in the driving operation. Particularly when the locking mechanism contains a sensor having a movably disposed element for the vehicle-sensitive triggering of the locking mechanism, the sensor is continuously deflected as a result of vibrations during driving and thereby strikes against other parts.
- The significance of a low-noise seat belt retractor rises if the retractor is installed in a seat and is arranged close to the upper part of the seat, which brings the retractor very close to a vehicle occupant's ear.
- Although, for avoiding such buzzing and rattling noises, the manufacturers of retractors offer components for quieting the sensor mass in the form of wire clamps or the like, these solutions are usually effective only when the seat belt is not worn.
- From German patent document DE 42 31 050 A1, a retractor is known which is arranged within a cavity of a column of a motor vehicle. The retractor includes an automatic belt retracting device as well as a belt tightening device. The automatic belt retracting device is enclosed by a housing which includes a base plate. The base plate, on the cavity side, rests against the inside panel of the column and is fastened to the inside panel by use of a single screw. In order to prevent the transmission of structure-borne noise from the automatic retracting device to the column, in the case of the known retractor, a sleeve-shaped elastomer part is provided between the screw, on the one hand, and the inside panel or the base plate, on the other hand.
- From German patent document DE 91 10 869.1 U1, a seat belt retractor is known which is equipped with a housing lid constructed as a plastic molded part with a base wall. A plurality of elevations cast to the base wall are provided, which taper in the forming-out direction of the housing lid and form a sound-absorbing labyrinth structure.
- It is an object of the invention to reduce the noise of a seat belt retractor in an easily implemented manner.
- According to the invention, this object is achieved by providing a cap for a seat belt retractor having a housing, which cap can be placed on a side of the housing of the seat belt retractor that is assigned to a sensor. The cap is made of aluminum and is provided with an adhesive plate, by which the cap is glued to the housing. Advantageous further developments are described and claimed herein.
- The cap according to the invention consists of aluminum and is provided with an adhesive plate by way of which the cap is glued onto a housing of the seat belt retractor. The noise generated by the sensor of the seat belt retractor is reduced by the cap having the adhesive plate.
- In an advantageous embodiment, the adhesive plate consists of an elastomer, particularly of a butyl adhesive. The butyl adhesive has good noise reduction characteristics and a good stability with respect to acid and alkali.
- Additional advantages and further developments of the invention are contained in the following description and the attached drawings.
- It is understood that the above-mentioned characteristics which will be explained in the following can be used not only in the respectively indicated combination but also in other combinations or alone without leaving the scope of the present invention.
- The invention is schematically illustrated in the drawings by means of several embodiments and will be described in detail in the following with reference to the drawings.
-
FIG. 1 is a schematic representation of the fastening of a seat belt retractor having a cap according to the invention on a vehicle body; -
FIG. 2 is a perspective view of a cap according to the invention; -
FIG. 3 is a schematic representation of the placing of the cap according to the invention onto the seat belt retractor; -
FIG. 4 is a schematic representation of a seat belt retractor having a cap according to the invention; -
FIG. 5 is a schematic representation of a top view of a cap according to the invention; and -
FIG. 6 is a schematic representation of a cross-section through a cap according to the invention. -
FIG. 1 illustrates the fastening of aseat belt retractor 1 by use of ascrew 2 on avehicle structure 3. The seat belt retractor is arranged inside the B column, specifically at the level of the seat occupant's ear. The seat belt retractor has a locking mechanism which contains a sensor (not shown) having a movably disposed element for the vehicle-sensitive triggering of the locking mechanism. The sensor is continuously deflected by vibrations in the driving operation and in the process strikes against other components, which generates noise. For reducing this noise, a cap according to the invention is placed at least on a sensor-side face 5 of the seat belt retractor. -
FIG. 2 shows thecap 4 according to the invention in an un-mounted condition. Thecap 4 has an essentiallycircular base part 6 with awall 7 surrounding thebase part 6 at a right angle. Thecap 4, therefore, essentially has a flat shell shape, which is illustrated in the figures. A metal is used as the material for the cap. Preferably, thecap 4 is made of aluminum. -
FIG. 3 shows how thecap 4 is placed onto ahousing 8 of the sensor-side face 5 of the seat belt retractor. Thehousing 8 is made of a plastic material. Identical elements shown in the figures have the same reference numbers. Theface 5 of theplastic housing 8 is essentially cylindrical and has at least oneelevation 9 at a point on its exterior surface. Thewall 7 of thecap 4 has a corresponding notch orrecess 10 which, when thecap 4 is placed on theplastic housing 8, receives theelevations 9, so that thecap 4 can be moved into the correct position, which is illustrated inFIG. 4 . Naturally,several elevations 9 may be provided around the circumference of the plastic housing, and several corresponding notches orrecesses 10 may be provided in thecap 4. -
FIG. 5 is a top view of thecap 4, which is provided with anadhesive plate 11 by which thecap 4 is connected with theplastic housing 8 in a self-adhesive manner. Theadhesive plate 11 is glued onto thebase surface 6 of thecap 4 and has an essentially ring-shaped construction. - The
adhesive plate 11 consists of an elastomer and, preferably, of a butyl adhesive. The butyl adhesive may be plastically deformable at room temperature, which promotes the gluing of thecap 4 onto theplastic housing 8. The butyl adhesive also has good noise reduction characteristics and a good stability with respect to acid and alkali. Theadhesive plate 11 is formed of a butyl cord, which is inserted under pressure in a round shape. The butyl cord is advantageously pressed to a length of 2 mm to 3 mm, and preferably to 2.5 mm. - The preceding description of the embodiments according to the present invention is used only for illustrative purposes and not for the purpose of limiting the invention. Particularly with respect to several preferred embodiments, it indicates to a person skilled in the art that various changes and modifications can be made with respect to the design and the detail without deviating from the idea and scope of the invention. Correspondingly, the disclosure of the present invention should not be limiting. Instead, the disclosure of the present invention has the purpose of illustrating the scope of the invention which is indicated in the following claims.
Claims (20)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007020192.5 | 2007-04-28 | ||
DE102007020192A DE102007020192A1 (en) | 2007-04-28 | 2007-04-28 | Cap for a safety belt retractor |
DE102007020192 | 2007-04-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
US20080265079A1 true US20080265079A1 (en) | 2008-10-30 |
US7883114B2 US7883114B2 (en) | 2011-02-08 |
Family
ID=39535312
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/109,462 Expired - Fee Related US7883114B2 (en) | 2007-04-28 | 2008-04-25 | Cap for a seat belt retractor |
Country Status (3)
Country | Link |
---|---|
US (1) | US7883114B2 (en) |
EP (1) | EP1985510B1 (en) |
DE (1) | DE102007020192A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20190270427A1 (en) * | 2018-03-01 | 2019-09-05 | Ford Global Technologies, Llc | Cover for a seatbelt retractor assembly to reduce audible noise and a seatbelt retractor assembly including the cover |
Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5248110A (en) * | 1991-07-17 | 1993-09-28 | Takata Corporation | Vehicle seat belt retractor |
US5904371A (en) * | 1998-02-19 | 1999-05-18 | Breed Automotive Technology, Inc. | Energy management safety belt retractor with mode shifting mechanism |
US6082655A (en) * | 1998-11-04 | 2000-07-04 | Trw Vehicle Safety Systems Inc. | Noise suppression cover for belt webbing retractor |
US6405962B1 (en) * | 1997-08-28 | 2002-06-18 | Nsk Autoliv Co., Ltd. | Retractor for use with a seat belt webbing |
US6419178B1 (en) * | 2000-07-19 | 2002-07-16 | Breed Automotive Technology, Inc. | Seat belt retractor with integrally formed frame |
US20020104914A1 (en) * | 2001-02-08 | 2002-08-08 | Alexander Rankin | Retractor having a swivel attachment component |
US6499554B1 (en) * | 1999-08-06 | 2002-12-31 | Hideaki Yano | Seat belt retractor |
US6745969B1 (en) * | 2003-01-03 | 2004-06-08 | New Spin Corporation | Pull-cord keeper |
US20040227030A1 (en) * | 2003-05-16 | 2004-11-18 | Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho | Webbing retractor |
US6834821B2 (en) * | 2001-11-13 | 2004-12-28 | Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho | Webbing retractor |
US20050029382A1 (en) * | 2003-08-07 | 2005-02-10 | Takata Corporation | Seat belt retractor and seat belt device |
US20080035778A1 (en) * | 2006-08-14 | 2008-02-14 | Alpha Security Products, Inc. | Swivel recoiler |
US20080067275A1 (en) * | 2006-09-19 | 2008-03-20 | Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho | Webbing retractor device |
US7530601B2 (en) * | 2005-05-26 | 2009-05-12 | Takata Corporation | Seatbelt retractor and seatbelt apparatus using the same |
US20100072313A1 (en) * | 2007-03-26 | 2010-03-25 | Eiji Maemura | Seat belt device |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2249989A1 (en) * | 1972-10-12 | 1974-04-18 | Porsche Ag | SAFETY BELT FOR VEHICLES |
DE3140270A1 (en) * | 1981-10-10 | 1983-04-28 | Autoflug Gmbh, 2084 Rellingen | Motor vehicle frame part with belt retractor and tensioning device |
JPH03279058A (en) * | 1990-03-29 | 1991-12-10 | Takata Kk | Retractor for seat belt |
US5209421A (en) * | 1990-09-27 | 1993-05-11 | Fuji-Autolib Co., Ltd. | Noiseless emergency locking type retractor |
DE9110869U1 (en) | 1991-09-02 | 1991-11-28 | Trw Repa Gmbh, 7077 Alfdorf, De | |
DE4231050A1 (en) | 1992-09-17 | 1994-03-24 | Daimler Benz Ag | Automatic safety belt roll-up device with base plate - has single fastening screw with central shaft section to pass through intermediate elastomer part on body pillar |
US5881962A (en) * | 1994-04-11 | 1999-03-16 | Autoliv Development Ab | Mass-body drive for a rotary tightening device |
JP5087082B2 (en) * | 2007-05-18 | 2012-11-28 | オートリブ ディベロップメント エービー | Seat belt retractor |
-
2007
- 2007-04-28 DE DE102007020192A patent/DE102007020192A1/en not_active Withdrawn
-
2008
- 2008-02-07 EP EP08002246.0A patent/EP1985510B1/en not_active Expired - Fee Related
- 2008-04-25 US US12/109,462 patent/US7883114B2/en not_active Expired - Fee Related
Patent Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5248110A (en) * | 1991-07-17 | 1993-09-28 | Takata Corporation | Vehicle seat belt retractor |
US6405962B1 (en) * | 1997-08-28 | 2002-06-18 | Nsk Autoliv Co., Ltd. | Retractor for use with a seat belt webbing |
US5904371A (en) * | 1998-02-19 | 1999-05-18 | Breed Automotive Technology, Inc. | Energy management safety belt retractor with mode shifting mechanism |
US6082655A (en) * | 1998-11-04 | 2000-07-04 | Trw Vehicle Safety Systems Inc. | Noise suppression cover for belt webbing retractor |
US6499554B1 (en) * | 1999-08-06 | 2002-12-31 | Hideaki Yano | Seat belt retractor |
US6419178B1 (en) * | 2000-07-19 | 2002-07-16 | Breed Automotive Technology, Inc. | Seat belt retractor with integrally formed frame |
US6722601B2 (en) * | 2000-07-19 | 2004-04-20 | Key Safety Systems, Inc. | Seat belt retractor with integrally formed frame |
US20020104914A1 (en) * | 2001-02-08 | 2002-08-08 | Alexander Rankin | Retractor having a swivel attachment component |
US6834821B2 (en) * | 2001-11-13 | 2004-12-28 | Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho | Webbing retractor |
US6745969B1 (en) * | 2003-01-03 | 2004-06-08 | New Spin Corporation | Pull-cord keeper |
US20040227030A1 (en) * | 2003-05-16 | 2004-11-18 | Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho | Webbing retractor |
US20050029382A1 (en) * | 2003-08-07 | 2005-02-10 | Takata Corporation | Seat belt retractor and seat belt device |
US7530601B2 (en) * | 2005-05-26 | 2009-05-12 | Takata Corporation | Seatbelt retractor and seatbelt apparatus using the same |
US20080035778A1 (en) * | 2006-08-14 | 2008-02-14 | Alpha Security Products, Inc. | Swivel recoiler |
US20080067275A1 (en) * | 2006-09-19 | 2008-03-20 | Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho | Webbing retractor device |
US20100072313A1 (en) * | 2007-03-26 | 2010-03-25 | Eiji Maemura | Seat belt device |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20190270427A1 (en) * | 2018-03-01 | 2019-09-05 | Ford Global Technologies, Llc | Cover for a seatbelt retractor assembly to reduce audible noise and a seatbelt retractor assembly including the cover |
US10562489B2 (en) * | 2018-03-01 | 2020-02-18 | Ford Global Technologies, Llc | Cover for a seatbelt retractor assembly to reduce audible noise and a seatbelt retractor assembly including the cover |
Also Published As
Publication number | Publication date |
---|---|
DE102007020192A1 (en) | 2008-10-30 |
EP1985510A2 (en) | 2008-10-29 |
US7883114B2 (en) | 2011-02-08 |
EP1985510B1 (en) | 2013-08-14 |
EP1985510A3 (en) | 2012-03-07 |
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